[点晴永久免费OA]【JavaScript】jquery中$(":input")和$("input")的区别
|
admin
2023年4月28日 15:1
本文热度 740
|
1. :input的作用是查找所有的input元素: input, textarea, select 和 button 元素。
查找所有的input元素,下面这些元素都会被匹配到。
HTML 代码:
<form>
<input type = "button" value = "Input Button" />
<input type = "checkbox" />
<input type = "file" />
<input type = "hidden" />
<input type = "image" />
<input type = "password" />
<input type = "radio" />
<input type = "reset" />
<input type = "submit" />
<input type = "text" />
<select><option>Option</option></select>
<textarea></textarea>
<button>Button</button>
</form>
jQuery 代码:
$(":input")
结果:
[
<input type = "button" value = "Input Button" />,
<input type = "checkbox" />,
<input type = "file" />,
<input type = "hidden" />,
<input type = "image" />,
<input type = "password" />,
<input type = "radio" />,
<input type = "reset" />,
<input type = "submit" />,
<input type = "text" />,
<select><option>Option</option></select>,
<textarea ></textarea>,
<button>Button</button>,
]
2. input仅仅选择input元素。
查找一个 input 元素。
HTML 代码:
<input>INPUT1</input>
<input>INPUT2</input>
<span>SPAN</span>
jQuery 代码:
$("input");
结果:
[ <input>INPUT1</input>,<input>INPUT2</input> ]
该文章在 2023/4/28 15:01:25 编辑过